It is a way of heating a home by taking warmth directly from the ground without the need to rely on fossil fuels or even stump up the cost of connecting to the main gas lines. But, so far, ground-source heat pumps have been a niche way of supplying household energy used only in isolated locations. However, the technology could soon be part of the mainstream energy network in Scotland after a company pioneering the technology announced it is expanding operations north of the border. Kensa are providers of “shared ground loop arrays”, a form of heating that provides each home with its own ground source heat pump, which the firm claims will mean lower bills and low-carbon heating with no heat loss. The company, based in Cornwall, said deployment of ground source heat pumps is particularly effective at alleviating fuel poverty in rural areas. Ground-source heat pumps work by running water through energy-absorbing pipes that are fed back into a house and used to heat a secondary fluid which turns into gas in a condenser. This gas is hot enough to provide heating and hot water from the taps without the need to connect to largescale infrastructure. The firm has enlisted the services of Matthew Black, previously a senior energy adviser at the Stirlingshire-based Fintry Development Trust, specialising in reducing carbon emissions and enhancing sustainability. Currently celebrating its 20th anniversary, Kensa’s heat pumps already provide heating to a number of sites, notably Orkney Islands Council’s multipurpose facility Stromness Warehouse, which is heated using the sea, and the first and most northerly ground source installations in Unst, Shetlands.
Herald 24th Aug 2019 read more »